Answer:
Explanation:
horizontal component of velocity of throw = 20 cos20 = 18.8 m /s
vertical downwards component = 20 sin20 = 6.84 m /s
time to displace by height 30 m = t , initial velocity u = 6.84 m /s
h = ut + 1/2 gt²
30 = 6.84 t + .5 x 9.8 t²
4.9 t² + 6.84 t - 30 = 0
t = - 6.84 ±√( 6.84² + 4 x 4.9 x 30 ) / 2x 4.9
= - 6.84 ±√( 46.78 + 588 ) / 9.8
= - 6.84 ±√(634.78 ) / 9.8
= - 6.84 ±25.2 / 9.8
= 1.87 s
horizontal displacement in 1.87 s
= 18.8 x 1.87
= 35.15 m .
The distance and the direction is 3 blocks East and then 3 blocks North.
<h3>What is distance to be travelled to go from point A to point B?</h3>
Distance is a measure of the space between two points.
Distance follows the path of travel of all object adding up all the spaces between the objects.
Displacement on the other hand is the distance travelled in a specific direction.
Displacement measures the shortest distance between two points in a specified direction.
The displacement of point from A to B is given as 3.606 blocks in a direction 33.69 ∘ north of east.
To determine the distance and direction of travel, the best possible route of travel is moving 3 blocks to the East and then 3 blocks to the North.
In conclusion, the distance travelled follows all the path of travel to get from one point to another.
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Answer:Answer:
See diagram for answers. The force and acceleration vectors are directed inwards towards the center of the circle and the velocity vector is directed tangent to the circle.
Explanation:
Answer:
From the base unit of length, we can define volume, and from the base units of length, mass, and time, we can define energy. ... Volume. Since volume is length cubed, its SI derived unit is m3
Explanation:
Hope it helps
Atomic mass can change through the process of fusion. Another way is, it can also change in nuclear fusion.